Can anyone from this community confirm whether hatch labels respect the ArcGIS Pro overposting environment?
It's documented that they don't in ArcMap and it appears that they do not in ArcGIS Pro either - see Do hatch labels respect ArcGIS Pro overposting env... - Esri Community.
On the assumption that this does represent an ArcGIS Pro software limitation I have posted an ArcGIS Pro Idea to have it lifted at Make ArcGIS Pro overpost environment (Maplex) take route hatch labels into account - Esri Community.